One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,5,4)(3,7,8,6)(9,10)(11,13)(12,14)(15,16)(17,18,22,26)(19,27,28,32)(20,25,21,24)(23,29,31,30)(1,3,5,8)(2,6,4,7)(9,11,13,10)(12,14,16,15)(19,28)(23,31)(27,32)(29,30)(1,2,5,4)(3,6,8,7)(10,11)(12,16)(17,19,20,29,22,28,21,30)(18,23,24,32,26,31,25,27)(1,4,5,2)(3,6,8,7)(9,12,13,16)(10,14,11,15)(19,28)(23,31)(27,32)(29,30)(10,11)(14,15)(17,20,22,21)(18,24,26,25)(19,29,28,30)(23,32,31,27)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.